Fig. 4.

Peak log likelihood for models with multiplicative fitness and additional mechanisms of selection. The values are compared with the multiplicative selection model with time decay (therefore, the relative likelihood values for this model are all equal to 0, and the corresponding bars are not visible). Accordingly, a value of 0 for any other model means a likelihood similar to that of the multiplicative selection with time decay model. Negative values represent a worse fit. Except for the additive model with FDS, all models are extensions of the multiplicative fitness model.